Add paginator.previous_page_path and paginator.next_page_path
Update docs to use paginator.{next,previous}_page_path
Add some docs regarding what the paginator exposes in liquid
Documentation for Pager.paginate_url
Return nil if num_page is nil
Join the path with baseurl in Pager.paginate_url
A bunch of pagination attributes will be nil if the subsequent/previous pages don't exist
Use paginate_path and don't help too much
Merge pull request #942 from mojombo/pagination-paths

Add paginator.previous_page_path and paginator.next_page_path